This web primer provides an introduction to in-situ capping, a low-cost, low-technology alternative for keeping contaminated sediments from polluting lakes, rivers, bays, and coastal estuaries.

In-situ caps are designed to seal contaminated sediments in place for long periods of time. Because the most widely used remediation methods call for treatment or removal of these pollutants, in-situ capping is somewhat controversial. This site provides a concise overview of the technology, including recommended practices and situations where it may be used most effectively. It also includes technical resources for those who are familiar with the technology.

To start this primer, select the "Introduction" link on the navigation bar along the left column.